Arsene Wenger must prove he can reinvent himself as Arsenal boss before being given a new contract.

Gunners chiefs are adamant it will be a mutual decision if manager Wenger stays past this summer's expiration of his current deal, in the face of growing fan unrest.

That means they must be convinced the 67-year-old can bring future success, despite a growing number of frustrated supporters calling for change.

Wenger knows he would have to revamp the squad after another disappointing season that has seen them fall short yet again in both the title race and Champions League.

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There is a two-year contract on the table and MirrorSport understands the terms are all agreed.

Wenger would like to extend what is already a 20-year stay, but has yet to make a final commitment — even his his backroom staff do not know which way his decision will go.

The Frenchman, who was muted in the dressing room after the 10-2 aggregate Champions League defeat by Bayern Munich, is acutely aware the supporters are angry.

Their fury will grow further if Arsenal miss out on a top four finish and fail to win the FA Cup.

But club chiefs maintain that all parties will decide whether Wenger remains.

Wenger watches in horror as Bayern beat Arsenal 5-1 for a third game in a row... (Image: Action Images via Reuters)

...meaning the Gunners have gone out at the same stage for seven years running (Image: Action Images via Reuters)

Supporters are concerned he has been reluctant in the past to change his methods or spend big in the transfer market to catch up with the likes of Chelsea and Manchester City.

Wenger is also facing problems after Alexis Sanchez ’s training ground bust-up and doubts over the Chile striker’s future.

But Arsenal forward Theo Walcott insists that the players must unite and fight to save the manager’s job.

Walcott said: “The players are like everybody else — we don’t really know what’s going on. We just want to try to focus on the football. The manager is focused on us. You can see how passionate he is with us from the way he talks to us in the meetings.

Walcott's goal offered hope of getting some pride back, but then it all went wrong (Image: Getty)

“He will take this on himself but us players need to look at ourselves. The manager has been taking a lot of flak in recent weeks and us players have been accepting it, but we can’t.

“We need to take the pressure off the manager and that will happen by performances. Who knows what the manager will do? Players just want to play football for this club and do well for the manager.”

Arsenal and Bayern Munich both face UEFA punishments following a pitch invader during Tuesday's match at the Emirates, and the throwing of toilet rolls by visiting fans.